Asked by: Alimou Alfred
asked in category: General Last Updated: 25th February, 2020

How do nitrates and phosphates cause eutrophication?

Eutrophication – “The process by which a body of water acquires a high concentration of nutrients, especially phosphates and nitrates. As the algae die and decompose, high levels of organic matter and the decomposing organisms deplete the water of available oxygen, causing the death of other organisms, such as fish.

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Considering this, what are common sources of nitrates and phosphates?

Major sources of nitrate and phosphate are fertilizer, sewage and runoff from animal farms. Phosphate also comes from the erosion of phosphate-bearing soil and sediment during human land-altering activities such as construction and mining.

Similarly, what is the difference between phosphates and nitrates? ammonia -> nitrite -> nitrate, which stays around if you don't have adequate natural filtration (liverock, deep sand bed, beneficial bacteria, refugium to export nutrients). It's also removed through water changes. phosphate is usually in the food you add, or in the water you use in your tank if you don't purify it.

Herein, how do phosphates and nitrates affect water quality?

Nitrates have the same effect on aquatic plant growth as phosphates and thus the same negative effect on water quality. The plants and algae are stimulated, which provide food for fish. But, if algae grow too wildly, oxygen levels in the water will be reduced and fish will die.

What is the effect of eutrophication in terms of nitrogen and phosphorus element?

The major drivers of marine eutrophication are nitrogen (N) and phosphorus (P) [2]. Eutrophication leads to hypoxia and anoxia, reduced water quality, alteration of food web structure, habitat degradation, loss of biodiversity and noxious and harmful algal blooms [1, 3].

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